Means for igniting the charge in internal-combustion engines



F. AND E. CARTER.

MEANS FOR IGNITING THE CHARGE IN INTERNAL COMBUSTION ENGINES.

APPLICATION FILED MAR. 26. mm.

1,345,999. at t d u y 6, 1920.

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APFLICATIQN FILED MAR, 26.19). 1,345,999. Patented July 6, 1920.

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UNITED STATES PATENTOFFIB FRANK CARTER AND EVERSHED CARTER, 0FSTAJBEFGBD, ENGLAND, A-SSIGNOll-S 0F ONE-THIRD TO GEORGE MILLSBLACKSTONE, 0F E'IJ-LIJIFORD, ENGLAND.

MEANS FOR IGNITING THE CHARGE IN ENTERNAL-COMBUSTION ENGINES.

Application filed March 26, 1919.

Specification of Letters Eatent.

To all whom it may concern.-

Be it known that we, FRANK CARTER and Evnnsrmo (/ARTER, both subjects ofthe King of Great Britain, and residents of fi tamford, in the county ofLi have invented a new and useful l.

ncoln, England, mproved Means for Igniting the Charge in internal-(lombustion Engines, of inc IS a speclfication.

which the follow- This invention relates to engines of the kinddescribed in No. 942,886 in which cru heavy fuel is injected orcombustion chamber at or specification of Patent de oil or other sprayedinto the near the end of heated bulbs.

According to our inventionwe provide the combustion chamber with a portor passage in which is fitted a fue and ignition block furnished withspray, circulating ports an Inter, such block being srm tion to thatdescribed in the Patent No. 1,171,018.

The fuel spray in this block is l and air mixing a fuel d an electricigilar in construcspecification of supplied with a suitable fuel, '6.9., paraffin or kerosene, although in some cases a heavier fuel. such astar 011 may be used, and the port or passage above mentioned is a flameissuing from It 1111 so arranged that purges upon the atomized jet offuel injected into the combustion chamber through the main spray in theusual and well known manner. The injecting air for the igniting and mainfuel sprays may be controlled by separate engune actuated valves, or bya single engine actuated valve. In the latter case the main fuel sprayis provided with a valve, closed by a spring pressed piston and openedby the injecting air pressure acting against the spring, in order tocause the main fuel spray to be slightly later than t he i suiting fuelspray which is controlled solely by the engine actuated valve.

The port or passage into which the block above mentioned fits, may beenlarged between the combustion chamber and the block to form anauxiliary combu which the combustion of t charge occurs.

stion chamber in he lgniting fuel Patented July c, iceo.

,-eria1 No. 285,312.

In the accompanying drawings: Figure 1 1s an end elevation of parts ofan internal combustion engine, showing our invention.

2 is a sectional plan of a portion of the combustion chamber taken onlines 11, 1--1, Fig. 1.

F ig. 3 is a vertical section on line 2-2, Figs. 1 and 2.

Fig. is

a vertical section on an enlarged scale taken on the line3-3, Fig. 2.

Fig. 5 1s a vertical section on an enlarged scale taken on the line 44,Fla. 1.

a is the combustion chamber and b the valve for admitting compressed airto the sprays.

This valve is actuated by the earn 0, F ig. 1, through the bell cranklever 0, rod 0 lever 0 spindle c and the forked lever 0 Fig. 4.

(Z is the compressed air supply pipe leading by way of the port (2, Fig.4, to the anpassage respectively, supplying to said chamber 6. with apiston 7 heavy fuel The valve f is provided and is pressed on to itsseat by the spiral spring F.

(F, Fig. i, is a port leading the compressed air to the nozzle 7r, blockit, in front Fig. 5, in the ignition of which the igniting fuel isconveyed by the pipe 5, annular port '11 and ports 2?, 2?.

air mixing i is the port, and y", 7"

igniting fuel and are air circulatlnc' ports operating as described inspecification 1:, F ig. .5, is the insulated terminal, and

7c the interrupter 1, and rod Z from the trip arm m of the magneto m. n,Fig. by means of which the arm, actuated by the lever 1 is a crank pin 7i magneto lever a 1s operated through the rod 71?.

0 1s a tr p catch earned on the lever n and adapted to be thrown out ofengage ment with the arm m by the set pin m catching the tail piece mwhen the lever a is near the end of its outward stroke.

m is a stop to prevent the trip catch falling back too far to reengagethe arm m.

9, Fig. 52, is an auxiliary chamber into which the nited, and

igniting fuel is sprayed and igg is a port leading therefrom into thecombustion chamber to direct the resultant flame on to the main :tuelspray.

What We claim. is

1. In an internal combustion engine of the kind in which a main fuelcharge is injected into the combustion chamber near the end of thecompression stroke, the combination of a sprayer for injecting the maincharge, a spring-pressed piston f provided in said sprayer, means forigniting said main fuel charge said means comprising a fuel and airmixing block (72,), a spraying nozzle (h), a mixing port air circulatingports 1n the block (h), ZtCOI11- municanon passage leading fromthe-block (71,) to the combustion chamber, electrical means for ignitingthe charge sprayed by the nozzle (72/), and a single compressed airvalve such as (b) to control both the main spray and the ignition spray.

2. In an internal combustion engine of nition spray;

'thelrind in Which a main fuel charge is inj ected into the combustionchamber near the end of the compression stroke, the combination of asprayer for injecting the main charge, means tor'ignitin'g said mainfuel charge D said means comprising a fuel and air mixing block (h), aspraying nozzle a mixing port a communication passage leading from theblock (it) to the combustion chamber, electrical means for igniting thecharge sprayed by the nozzle (h), a single compressed air valve such as(6) to control both the main spray and igandthe provision on the mainfuel spraying valve of a spring pressed piston such as I FRANK CARTER.EVERS HED CARTER.

Witnesses V Rrormnn EVVATTS, WALTER MALooLiL

